Home / 3,376.20-5,067.10-1,429.74

Finding the Fourth Proportional to 3,376.20, 5,067.10 and 1,429.74

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Solution

The fourth proportional to 3,376.20, 5,067.10 and 1,429.74 is: 2,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.20 : 5,067.10 = 1,429.74 : x
  2. Step 2: Convert to fraction form
    3,376.20/5,067.10 = 1,429.74/x
  3. Step 3: Cross multiply
    3,376.20x = 5,067.10 × 1,429.74
  4. Step 4: Simplify right side
    3,376.20x = 7,244,635.55
  5. Step 5: Solve for x
    x = 7,244,635.55/3,376.20
  6. Step 6: Final answer
    x = 2,145.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.